Condition: ParkinsonsIntervention: Radiation: PiB and VATSponsors: Washington University School of Medicine; National Institutes of Health (NIH); National Institute of Neurological Disorders and Stroke (NINDS); National Institute on Aging (NIA)Recruiting

Condition: Parkinson DiseaseInterventions: Other: The role of the noradrenergic system across the life span (Healthy Subjects); Other: The role of the noradrenergic system across the life span (Parkinson's Disease Subjects)Sponsor: Hospices Civils de LyonRecruiting

Condition: Parkinson's DiseaseInterventions: Device: iPad-Based Clinical Support Care; Other: Standard Clinical CareSponsors: University of Utah; University of Florida; National Institute of Nursing Research (NINR); Wake Forest University Health Sciences; Baylor College of Medicine; NYU; University of California, San FranciscoRecruiting